There are 9 balls in a jar: 3 red, 2 blue and…

There are 9 balls in a jar: 3 red, 2 blue and 4 green. If a single ball is drawn from the jar, what is the probability of that it is either blue or red?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #37263